leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

iwlwifi: mvm: don't enable VHT MCS9 in 20Mhz

Browse Source 
MCS9 in NSS=1 or NSS=2 isn't valid for 20Mhz so don't enable
it in case we're dealing with a 20Mhz sta. Trying to configure an
MCS9 rate with 20Mhz in the LQ rate table would lead to a FW assert.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Eyal Shapira 2013-11-09 23:25:06 +02:00 committed by Emmanuel Grumbach
parent 393b9e5b82
commit 271518adff
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/iwlwifi/mvm/rs.c
View File

@ -2241,6 +2241,11 @@ static void rs_vht_set_enabled_rates(struct ieee80211_sta *sta,
if (i == IWL_RATE_9M_INDEX)
continue;
/* VHT MCS9 isn't valid for 20Mhz for NSS=1,2 */
if (i == IWL_RATE_MCS_9_INDEX &&
sta->bandwidth == IEEE80211_STA_RX_BW_20)
continue;
lq_sta->active_siso_rate |= BIT(i);
}
}
@ -2251,6 +2256,11 @@ static void rs_vht_set_enabled_rates(struct ieee80211_sta *sta,
if (i == IWL_RATE_9M_INDEX)
continue;
/* VHT MCS9 isn't valid for 20Mhz for NSS=1,2 */
if (i == IWL_RATE_MCS_9_INDEX &&
sta->bandwidth == IEEE80211_STA_RX_BW_20)
continue;
lq_sta->active_mimo2_rate |= BIT(i);
}
}